When I press Enter, I send a message and the field is cleared.
private void Clear_Enter(object sender, KeyRoutedEventArgs e) { if (e.Key == Windows.System.VirtualKey.Enter) { string str; Message_BOX.Document.GetText(Windows.UI.Text.TextGetOptions.None, out str); while (str[str.Length - 1] == '\n' || str[str.Length - 1] == '\r') str = str.Substring(0, str.Length - 1); Message_BOX.Document.SetText(Windows.UI.Text.TextSetOptions.None, str); } } But before cleaning, there is still a line break and the transfer animation is visible. How to remove the transfer?